<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="标识图" prop="imageUrl">
        <el-input
          v-model="queryParams.imageUrl"
          placeholder="请输入标识图"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="发布内容" prop="memoryUrl">
        <el-input
          v-model="queryParams.memoryUrl"
          placeholder="请输入发布内容"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="备注信息" prop="memo">
        <el-input
          v-model="queryParams.memo"
          placeholder="请输入备注信息"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="删除标识" prop="deleteSign">
        <el-input
          v-model="queryParams.deleteSign"
          placeholder="请输入删除标识"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="分类" prop="classificationId">
        <el-input
          v-model="queryParams.classificationId"
          placeholder="请输入分类"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['teaching:res:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['teaching:res:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['teaching:res:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['teaching:res:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="resList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="资源序号" align="center" prop="resourcesId" />
      <el-table-column label="发布教师" align="center" prop="teacherName" />
      <el-table-column label="头像" align="center" prop="imageUrl" width="100">
        <template slot-scope="scope">
          <image-preview :src="scope.row.imageUrl" :width="50" :height="50"/>
        </template>
      </el-table-column>
      <el-table-column label="发布学院" align="center" prop="collegeName" />
      <el-table-column label="发布班级" align="center" prop="className" />
      <el-table-column label="发布内容" align="center" prop="memoryUrl" />
      <el-table-column label="备注信息" align="center" prop="memo" />
      <el-table-column label="删除标识" align="center" prop="deleteSign" />
      <el-table-column label="分类" align="center" prop="classificationId" />
      <el-table-column label="备注" align="center" prop="remark" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['teaching:res:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['teaching:res:remove']"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>
    
    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改资源信息对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="发布老师" prop="teacherId">
          <el-select v-model="form.teacherId" placeholder="请选择发布老师" clearable :style="{width: '100%'}">
            <el-option
                v-for="item in formTeacherAll"
                :key="item.teacherId"
                :label="item.teacherName"
                :value="item.teacherId"/>
          </el-select>
        </el-form-item>
        <el-form-item label="发布班级" prop="teacherSex">
          <el-select v-model="form.classId" placeholder="请选择需要发布班级" clearable :style="{width: '100%'}">
            <el-option
                v-for="item in formClass"
                :key="item.classId"
                :label="item.className"
                :value="item.classId"/>
          </el-select>
        </el-form-item>
        <el-form-item label="标识图" prop="imageUrl">
          <image-upload v-model="form.imageUrl"/>
        </el-form-item>
        <el-form-item label="发布内容" prop="memoryUrl">
          <el-input v-model="form.memoryUrl" placeholder="请输入发布内容" />
        </el-form-item>

        <el-form-item label="发布文件" prop="memoryUrl" required>
          <el-upload ref="memoryUrl"  :action="memoryUrlfileList" :file-list="memoryUrlfileList"
                     :before-upload="memoryUrlBeforeUpload"multiple>
            <el-button size="small" type="primary" icon="el-icon-upload">点击上传</el-button>
          </el-upload>
        </el-form-item>

        <el-form-item label="备注信息" prop="memo">
          <el-input v-model="form.memo" placeholder="请输入备注信息" />
        </el-form-item>
        <el-form-item label="删除标识" prop="deleteSign">
          <el-input v-model="form.deleteSign" placeholder="请输入删除标识" />
        </el-form-item>
        <el-form-item label="分类" prop="classificationId">
          <el-input v-model="form.classificationId" placeholder="请输入分类" />
        </el-form-item>
        <el-form-item label="备注" prop="remark">
          <el-input v-model="form.remark" placeholder="请输入备注" />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listRes, getRes, delRes, addRes, updateRes } from "@/api/teaching/res";
import { listTeacherAll } from "@/api/teaching/teacher";
import { getClassCode } from "@/api/teaching/class";
import { getCollege } from "@/api/teaching/college";
export default {
  name: "Res",
  data() {
    return {
      formTeacherAll:[],
      formClass:[],
      memoryUrlfileList: [],
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 资源信息表格数据
      resList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        teacherId: null,
        imageUrl: null,
        collegeId: null,
        classId: null,
        memoryUrl: null,
        memo: null,
        deleteSign: null,
        classificationId: null,
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
      }
    };
  },
  created() {
    this.getList();
  },
  methods: {
    /** 查询资源信息列表 */
    async getList() {
      this.loading = true;
      await listRes(this.queryParams).then(response => {
        this.resList = response.rows;
        this.total = response.total;
      });
      await listTeacherAll().then(response => {
        this.formTeacherAll = response.data;
      });
      await getClassCode('1').then(response => {
        this.formClass = response.data;
      });
      for (var i = 0; i < this.resList.length; i++) {
        for (var j = 0; j < this.formClass.length; j++) {
          if(this.resList[i].classId == this.formClass[j].classId){
            this.$set(this.resList[i],"className",this.formClass[j].className);
            await getCollege(this.formClass[j].collegeId).then(response => {
              console.log(response);
              this.$set(this.resList[i],"collegeName",response.data.collegeName);
            });
            break;

          }else {
            this.resList[i].className = "错误";
          }
        }
        for (var j = 0; j < this.formTeacherAll.length; j++) {
          if(this.resList[i].teacherId == this.formTeacherAll[j].teacherId){
            this.$set(this.resList[i],"teacherName",this.formTeacherAll[j].teacherName);
            break;
          }else {
            this.resList[i].teacherName = "错误";
          }
        }
      }
      this.loading = false;

    },
    memoryUrlBeforeUpload(file) {
      let isRightSize = file.size / 1024 / 1024 < 2
      if (!isRightSize) {
        this.$message.error('文件大小超过 2MB')
      }
      return isRightSize
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        resourcesId: null,
        teacherId: null,
        imageUrl: null,
        collegeId: null,
        classId: null,
        memoryUrl: null,
        memo: null,
        deleteSign: null,
        classificationId: null,
        createBy: null,
        createTime: null,
        updateBy: null,
        updateTime: null,
        remark: null
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.resourcesId)
      this.single = selection.length!==1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加资源信息";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const resourcesId = row.resourcesId || this.ids
      getRes(resourcesId).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改资源信息";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.resourcesId != null) {
            updateRes(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addRes(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const resourcesIds = row.resourcesId || this.ids;
      this.$modal.confirm('是否确认删除资源信息编号为"' + resourcesIds + '"的数据项？').then(function() {
        return delRes(resourcesIds);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {});
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('teaching/res/export', {
        ...this.queryParams
      }, `res_${new Date().getTime()}.xlsx`)
    }
  }
};
</script>
